Structure–reactivity correlation in selective colorimetric detection of cyanide in solid, organic and aqueous phases using quinone based chemodosimeters
作者:Ramalingam Manivannan、Kuppanagounder P. Elango
DOI:10.1039/c5nj02059j
日期:——
Quinone based colorimetric chemodosimeters, which could instantly detect CN− in solid, organic and aqueous phases with selectivity and sensitivity are described. The results of UV-Vis, fluorescence, 1H and 13C NMR spectroscopy, electrochemical studies and product analysis confirmed that the mechanism of sensing is through nucleophilic addition of CN− to the CC bond of the indole ring. DFT calculations
醌基于比色chemodosimeters,这可能会立即检测到CN -与选择性和灵敏度的固态有机相和水相进行说明。的紫外-可见光,荧光的结果,1 H和13 C NMR光谱学,电化学研究和产品分析证实感测的机制是通过亲核加成CN的-到C吲哚环的C键。进行DFT计算以合理化这些传感器的传感机制。虽然传感器显示有F不同的颜色变化-在有机介质经由H-键形成,它们是朝CN高度选择性的-如中继实验中所示以及将它们添加到一起时。一种新的尝试通过进行“结构-反应性的相关性”使用哈米特取代基常数(以解释在所述感测的行为取代基的效果σ p)。